Concealed door hinge



ou. 13, 1925-; 1,556,742v

y J. w. ANDERSON C OHCEALED DOOR HINGE v Griginal Filed Oct. 19 ,'1921 Jain, /Z/vrfa/z y Patented oct. 13, 1925.

UNITED STATESY JOHN W. ANDERSON, F

CHICAGO, ILLINOIS, ASSIGNAO'R OF ONE-HALF T0 CLARENCE POFFENBEEGER, 0F CHICAGO, ILLINOIS.

CONCEALED DOOR HINGE.

Application led October 19, 1921, Serial No. 508,805. Renewed April 10, 1924.

To all 'wht/2m t may ooncewi.:

Be it known that I, JOHN W. ANDERsoN, a citizen of the United States, residing at Chicago, in the countyof Cook and State of Illinois, have invented a certain new and useful Improvement in Concealed Door Hinges, of which the following is a full, clear, concise, and exact description, reference being had to the accompanying drawings, f-orming a part of this specification.

This invention relates to improvements in concealed door hinges.

As is well known, there is a pressing demand at present for a p-ractical, substantial. concealed hinge for doors, particularly in connection with automobile bodiesIv of the closed type wherein the body and` door curve inwardly at the bottom. The present practice requires the use of one or more outwardly projecting strap hinges in order to allow for the proper falinement of the pivotal axes of the `vertical series-of hinges secured to the door and body at different points along the curvedformations thereof. Such outwardly projecting strap hinges are unpleasing in appearance and form projections on which the clothing may be torn.

Some attempts have been made to employ. concealed hinges in automobile body construction butthe same, so far as I am aware, present serious disadvantages for the reasons that they do not provide for suliicient clearance in the swinging movements of the door and also require cutting away so much of the door frame yor stile as to seriously weaken the latter. As is well known in automobile construction, whenl the doors are closed, there is almost universally a bead or molding carried by the door which projects slightly over the crack left between the door and body when the door vis in closed position, and provision must be made for throwing or swinging the door with sufficient clearance that Said projecting strip of molding or bead will not engage with the corresponding molding on the framework, in order to avoid marring or indentation. Furthermore, the types of concealed hinges heretofore proposed for use on automobiles having an inward bottom curvature on the body and door do not allow sufficient clearance to permit the hinges being properly vertically alined in the relatively narrow wood to which the hinges must be applied.

One object of my invention is to provide a concealed type of hinge for doors, and more particularly for use on automobiles, -which requires the minimum depth and width of mortise or recess in the woodwork for a predetermined clearance between the door and framework when the door is swung open.

Another object of my invention4 is to provide'a concealed door hinge of the type indicated in the preceding paragraph such that, for a given size of mortise or recess required to be cut from the woodwork, a greater clearance or throw Will be allowed the door in its opening movements than in any previous type of concealed hinge.- A

Another object of the invention is to provide a concealed door hinge wherein are com- 'bined minimum size and greater throw than concealed hinges of prior constructions to thereby adapt a plurality of my improved hinges -to be properly alined with greater latitude in the woodwork of limited width wherein the door and door frame are curved in the direction of their length, as in automobile body construction.

Other objects of my invention are to provide a hinge of the character indicated in the preceding paragraphs which may be manufactured at comparatively small eX- pense with the principal parts thereof in the form of die pressings, which may be assembled and applied with a minimum off labor, and which is strong, durable and eiicient in service. n

In the drawing forming a part of this specification, Figures 1 and 2 are horizontal, sectional views corresponding to the section llines 1-1` and 2-2 respectively, of Figure 3, illustrating one embodiment of my improved hinge as applied to automobile body construction. In Figure 1, the relation of the parts is shown in dotted lines when the door is opened. Figure 3 is a vertical sectional view in the plane of the usual crack left between the adjacent edges of the door and door frame when the door is lin closed position. Figure 4 is a horizontal sectional ./iew similar-to Figure 2 but illustrating the door in open position and with the journal bearing'locking b-lock loosened to illustrate the manner of assembling and disassembling the parts. And Figure 5 is a detall perspective of one of the main parts of the hinge.

A. In the drawing, indicates the framework surrounding a door opening of an as to conceal the crack or joint, said projecting edge of the molding being indicated at 11b. For convenience of description and claims, the side to which the door swings will be referred to as the outer side with respect to thev woodwork of the door frame,

door and other parts.

In carrying out my invention, I employ what may be termed a housing A; a pla-te B; a block C; a retaining screw or bolt D; and a nut block E.

In the arrangement shown, the housing A is recessed or mortised into the frame 10 and the plate B is secured to the door., Said housing A is preferably in the form of a die pressed sheet metal product of suitable gauge since the form thereof readily lends itself to a die pressing operation. Said housing as shown, is formed on the face thereof adjacent the door edge with top and bottom flanges 12-12 suitably apertured andv counter-bored to -accommodate upper and lower sets of Hush wood screws 13-13. Inwardly of the plane of the flanges 1212, `the housing A is formed on its outer side with an integral wall 14 of a depth corresponding to the maximum depith'of the mortise required, said side wall 14 merging with two bottom walls 15--15` extending at right angles to the side wall 14 and also with an inclined partition 16. Said bottom walls 15-15 are continued integrally with inner side walls 17-17 lparallel to the outer side wall 14, as best indicated in Figure 1. The inclined or diagonal partition 16 is extended from the bottom outside corner of the housing to the exposed face of the housing but at the inside corner thereof as indicated at 16a in Figure 2. Said inclined partition 16 is in a plane intermediate the portions ofthe housing defined by the walls 15 and 17 and the integral structure is maintained by triangular horizontally `extending webs 18-18, leaving in the back of the housing a triangular recess to accommodate the nut block E and the end of the screw bolt D, as shown in Figure 2. It will also be understood that upper and lower walls are provided as indicated at 19-19 in Figure 3 extending horizontally from the bottoml of the housing to the flanges 12-12. It will be noted also that the inclined partition 16 provides on the interior of the housing a 'triangular space to accommodate the block E as best shown in Figure 2. j

Referring particularly to Figures 2 and 4,

it will be noted that, where 'the inclined wall 16 merges with the outer side wall 14 at the bottom of the housing, as indicated at 20, the interior surface is made rounded so as to provide a partial journal bearing. This feature of the construction is of importance inasmuch as it allows me to locate the bearing or axis of the swinging part ofy the hinge at a point which is the nearest possible to the molding 10a andl at the nearest possible,

and is provided at the top and bottom there.

of with suitable counterbored apertures 23-23 to accommodate wood screws for securing the plate to the door 11. The plate section 21 is preferably applied flush with the edge of the door as shown clearly in Figures 1 and2.

The arms 22-22 are integral with the plate section 21 and extend for a portion of their length at right angles to the plate section 21 as indicated at 22a. Said arms 22 are then bent so as to extend horizontally and parallel with the plate section 21 as indicated at 22'. The arms thus formed are vertically separated for a distance slightly greater' than the width of rthe inclined partition 16 so that said arms 22 are adapted to straddle said inclined partition in moving into the housing. The free ends of the extensions 22b are integrally united by a vertically extending journal or pintle section 24 arranged parallel t0 the plate section 21 and in a plane flush with the outer edge of said plate section 21, as shown in Figure 2. Said journal section 24 is adapted to be positioned in the partial journal bearing 20 and, as will be obvious, the arms 2211-22b are freely movable into and out of the upper and lower triangular pockets of the housing heretofore described. When the door 11 is in closed position, the sections 22b of said arms will lie flat against the bottom walls 15 and thel sections 22a will lie flat against the inside walls 17-17, as best shown in .Figure 1.

When the door is in fully open position. the

v ing the hinges on the door and framework Esi having curvature while at the same time maintaining the pivotal axes of the hinges in vertical alinement and leaving sufficient clearance throughout the entire length of the door between the moldings to prevent injury to any of the parts. In this connection, reference may be had to the disclosure in Figure 7 of my co-pending application 464,195, filed April 25,l 1921. In the drawing of the present application, the parts are shown full size to substantially accurate scale. The two main parts of the hinge are held inassembled relation by the blocks C and E and the screw D. The block C is of triangular form having an inclined face 116 corresponding to the partition 16 and an outer face 25 parallel to the outer side wall 14 of the housing. At the corner where the faces 25 and 116 merge, a partial journal bearing 26 is formed, arranged to fit'k over the journal section 24 and, in conjunction Awith the partial bearing 20, complete the entire journal bearing for the journal section 24. The block C is of athiclniess corresponding to the vertical dimension of the partition 16 and consequently may be seated between the arms 22-22. When in operative position,lthe face 27 of the block C lies flush with the surface of the flanges 12 of the housing A. l

The block C is provided with an elongated slot 28 therein through which extends the shank of the screw bolt D. Said slot 28, at one end in the face 27, is enlarged as indicated at 28a to accommodate the head of the screw bolt D when-the parts are in operative position so as to have the end of the screw bolt Hush with the face 27. By means of the slot 28, as best indicated in Figures 2 and 4, it will be seen that the block C can be slipped outwardly along the partition 16 when the screw bolt is loosened so as to leave sufficient clearance for inserting and withdrawing the journal section 24. This facilitates the assembling of the parts of the hinge after the housing has been secured to the framework and the plate B to the door and also allows the dismounting of the door at any time desired without detaching the housing or plate B from its respectiveI support. j

The nut block E is also of triangular form and ts against the bottom side of the From this it Willbe vent the block partition 16 and is located between the upper and lower triangular pockets of` the housing and restricted against turning by the walls 18-18. The block Exis threaded so as to act as a nut inl operation with thc screw bolt D in holding the parts in assembled relation. Preferably the block E is formed with an integral`lug- 29 adapted to fit into a corresponding depression 30 stamped into the partition 16 so 1as to prethe partition 16.

The housing A, as heretofore described, and the plate B are preferably formed as die pressings so as to reduce. the cost of manufacture to a minimum and insure accuracy as to dimensions. The blocks C and E from sliding lengthwise of E are preferably in the form of castings A suitably machined.

As heretofore indicated, the hinge shown in the drawing is to substantially an accurate full size scale from which it will be seen that the over-all depth of the housing A-is approximately 1%, the width 119g, and the total height of the housing proper, without considering the fian'ges 12-'12is 14%,. As shown in Figure 1, the clearance exceeds a half inch. On account of the small size of the mortise or recess required for the housing, the framework is not materially weakened and. I believe I am the first to provide, in a concealed type of hinge as compact as above indicated, a clearance in any wise approximating a half inch.

I have herein shown and described what I now consider the preferred manner of carrying out the invention but the same vis by way of illustration only and not by way of limitation. All changes and modifications are contemplated which come within the scope of the claims appended hereto.

I claim:

1. In a concealed hinge for doors and the like, the combination with a housing adapted to be recessed into one of the members to be hinged, said a partial journal bearing at its bottom corner on the outer side; of a plate adapted to be secured to the other of the members to be hinged, said plate having an arm rigid therewith and extending therefrom, first substantially at right angles and then subhousing being provided with stantially parallel to the plate proper, the .Y

outer end of said parallel portion of said be hinged, said housing having an outerside wall and a bottom wall yand provided with an integral partial journal bearing at the corner between said walls; of a plate adapted to be secured to the other of the members to be hinged, said plate having an arm rigid therewith and extending `therefrom first substantially at right angles and then substantially parallel to the plate andV at the end thereof provided with a journal section adapted to be seated in said integral partial journal bearing of the housing; and detachable means cooperable with said journal section for retaining the latter' in position.

8. In a concealed hinge for doors and the like, the combination with a housing adapted to be recessed into one of the members to be hinged, said housing being provided Wit-h a partial journal bearing .at its bottom corner y on the outer side thereof; of a plate adapted `\to be secured to the other of the members 'to be hinged, said plate having a pair of spaced arms rigid therewith and extending therefrom first substantially at right Iangles and then substantially parallel to the plate proper, the outer face of said arms. being connected by a journal section arranged lengthwise of the plate and adapted to be seated in said partial journal bearing; and detachable means secured within the housing having a cooperable partial journal bearing to retain said journal section in position.

4. In a concealed hinge for doors and the like, the combination with a housing adapted to be recessed into one of the members to be hinged, said housing having an outer side Wall and a bottom wall and formed with an integral partial journal bearing at the corner between said`walls; of a plate adapted to be secured to the other of the members to be hinged, said plate having a pair of spaced arms rigid therewith and extending therefrom first substantially at right angles and then substantially parallel to the plate proper, the outer ends of said arms being connected by a journal section arranged parallel to the plate proper and adapted to be seated on said partial journal bearing; and means cooperable with said journal section for retaining the latter in operative position. 7

5. In a hinge ofthe character described, the combination with al housing adapted to be mounted on one of the members to be hinged, said housing having an outer side wall and a bottom wall rounded at their juncture to provide Ian interior partial journal bearing at the nearest possible point to the outer side and bottom of the housing;

. of a cooperable hinge plate adapted to bey secured to the other of the members to be hinged, said plate being provided witiian arm extended therefrom, said arm having a jqurnal section at its free end adapted to cooperate with said partial journal bearing, the arm -being accommodated within the housing when the door is in closed position;

and means for holding said journal section;

, secured to the other of the members to 'be hinged, said plate bei-ng provided with an arm extended therefrom, said arm having a journal section at its free end adapted to cooperate with said partial journal bearing, the arm being accommodated Wlthnr the housing when the door is in closed positlon; and means for holding said journal sectlon in operative position, said arm being formed integrally with the.plate and having a substantially right-angular bend therein.

7. In a hinge of the character described, the combination with a housing adapted t0 be recessed into one of the members to be hinged, said housing being formed with a right-angular pocket in the bottom thereof and with a partition inclined from the bottom outer side toward the face of the housing, of a cooperable hinge plate adapted to be secured to the other of the members to be hinged, said plate having an arm ri id therew1th, said arm having a right-angu ar bend therein adapted to be accommodated in said right-angular pocket; means providing a pivotal connection between the free end of said .arm and they housing, said means including a detachable block secured to said inclined partition of the housing.

8. In a hinge of the character described, the combination with'a housing adapted to be mortised into one of the members to be hinged, said housing being provided with a centrally disposed inclined partition and right-angular pockets on each side of said partition; of a cooperable hinge plate, said plate having a pair of spaced arms extending therefrom, said arms having right angular bends therein adapted to be accommodated in the respective right-angular pockets, the free ends of said arms being connected by a journal section; and means sis for retaining said journalA section in operav tive position including, a block detachably secured to said inclined partition.

9. In a hinge of the character described, the combination with a housing adapted .to be mortised into one of the members to be hinged, said housing being lprovided with a centrally disposed inclined partition and right-angular pockets on each side of said partition; of a cooperable hinge plate, said plate having a pair of spaced arms extending therefrom, said arms having right-angular bends therein adapted to be accommodated in the respective right-angular pockets, the free ends of said arms being connected by a journal section; and means for retaining therein and an integrally formed partial journal bearing; of a Acooperable die pressed hinge plate having a plate section proper and integral spaced arms extending therefrom, the free ends of said arms having an integral journal section formed therebetween and adapted to be seated on said partial journal bearing; and detachable means for. securing said journal section in operative position. v

11. In a concealed hinge for doors, the combination with an element to be secured to one of the members tobe hinged, said element being provided with a portion extending into said member, said portion being provided with a partial journal bearing; of a plate adapted to be secured to the other of the members to be hinged, said plate having an arm rigid therewith and extending therefrom, first laterally and then substantially parallel to the plate proper, the outer end of said parallel portion of said arm being provided with a journal section arranged parallel to and extending lengthwise of the plate, and adapted to be seated on said partial journal bearing of the extended portion of said element; and means detachably secured to said element having a co-operable section adapted to retain on in place.

led hinge for doors, the ent adapted to be bers to be hinged, ded with a portion ber and parallel to hereof to which the door opens; be secured to the other hinged, said plate havand extending journal bearing said journal secti.

12. In a concea combination with an elem secured to one of the m said element being provi into said mem that side t of a plate adapted to of the members to be m rigid therewith first laterally and then substanaid plate and extending n of said element d means including d a sectional journal id element for pivotelement and the free j parallel to the e inner end of said element. ge for doors and therefrom, tially parallel to s lengthwise. of Said portio when the door 1s open; an a journal element an bearing embracing sa ally connecting said end of said arm on an axis plate and at th 13. In a concealed hin the like, the combination with a housing be recessed into one of the memhinged, said housing being provided with a journaled bearing element; of ted to 'be secured to the other of be hinged, said plate havwith and extending right angles adapted to a plate adap the members to m rigid there first substantially at bstantially parallel to the plate f said parallel portion vided with a journal llel to and extending ate and adapted to be al bearing element of e means secured therefrom, and then su proper, the outer end o of the-arm being pro section arranged pai lengthwise of the pl seated on said journ the housing; and detachabl within the housing engaging over section to retain the same in p tness that I claim the foregoing I bed my name this 29th W. ANDERSON.

have hereunto subscri day of Sept. 1921. 

